<!DOCTYPE html>
<html lang="en"  xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
    <meta charset="UTF-8"/>
    <title>Title</title>
</head>
<body>
hello,<p th:text="${username}"></p>
<a href="/user?lang=en_US">English(US)</a>
<a href="/user?lang=zh_CN">简体中文</a>
<h3 th:text="#{hello}"></h3>
</body>
</html>